Don't handle display change event/requests to avoid being killed by session manager

chromeos/display/output_configurator.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROMEOS_DISPLAY_OUTPUT_CONFIGURATOR_H_
 #define CHROMEOS_DISPLAY_OUTPUT_CONFIGURATOR_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 56 matching lines @@
 
   OutputState output_state() const { return output_state_; }
 
   // Initialization, must be called right after constructor.
   // |is_panel_fitting_enabled| indicates hardware panel fitting support.
   // If |background_color_argb| is non zero and there are multiple displays,
   // OutputConfigurator sets the background color of X's RootWindow to this
   // color.
   void Init(bool is_panel_fitting_enabled, uint32 background_color_argb);
 
+  // Stop handling display configuration events/requests.
+  void Stop();
+
   // Called when the user hits ctrl-F4 to request a display mode change.
   // This method should only return false if it was called in a single-head or
   // headless mode.
   bool CycleDisplayMode();
 
   // Called when powerd notifies us that some set of displays should be turned
   // on or off.  This requires enabling or disabling the CRTC associated with
   // the display(s) in question so that the low power state is engaged.
   bool ScreenPowerSet(bool power_on, bool all_displays);
 
@@ skipping 84 matching lines @@
   static bool IsInternalOutput(const XRROutputInfo* output_info);
 
   // Returns output's native mode, None if not found.
   static RRMode GetOutputNativeMode(const XRROutputInfo* output_info);
 
   // This is detected by the constructor to determine whether or not we should
   // be enabled.  If we aren't running on ChromeOS, we can't assume that the
   // Xrandr X11 extension is supported.
   // If this flag is set to false, any attempts to change the output
   // configuration to immediately fail without changing the state.
-  bool is_running_on_chrome_os_;
+  bool configure_display_;
 
   // This is set externally in Init,
   // and is used to enable modes which rely on panel fitting.
   bool is_panel_fitting_enabled_;
 
   // The number of outputs that are connected.
   int connected_output_count_;
 
   // The base of the event numbers used to represent XRandr events used in
   // decoding events regarding output add/remove.
@@ skipping 18 matching lines @@
 
   // Indicates the time at which |output_state_| was entered.
   base::TimeTicks last_enter_state_time_;
 
   DISALLOW_COPY_AND_ASSIGN(OutputConfigurator);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DISPLAY_OUTPUT_CONFIGURATOR_H_